Ch 11 Light, reflection and shadow

The size of shadow of pen will be small when:

• Pen is kept near to candle

• Pen is kept away from candle

• Pen is set exactly in between candle and screen

• None of the above

When the Sun is behind you, your shadow is ...

• behind you

• in front of you

• at the side of you

• not there

When an object moves closer to a light source, its shadow...

• Gets smaller

• Gets bigger

• Changes shape

• Stays the same size

We can see things around us because of light reflecting off the object and into our eyes?

• True

• False

Why does the cat form a shadow?

• It reflects light

• It blocks light

Anushka put some tea into four cups made up of paper, glass, metal & porcelain. Which cups will allow her to see the level of tea clearly

• paper cup

• metal cup

• glass

• porcelain cup

During a lunar eclipse , the _____ casts its shadow on the ____ .

If we stand in a completely dark room, will we be able to see a reflection in a mirror?

• Yes

• No

Rectilinear propagation of light means

• light bends after striking a smooth surface

• light travels in a straight line

• light travels in a curvilinear line

• both a and b

which of the characteristics is not exhibited by the shadow of an object?

• erect

• can be formed on screen

• same colour as the object

• can be bigger than the object